EP1155753B1 - Procédé et installation de laminage à froid. - Google Patents
Procédé et installation de laminage à froid. Download PDFInfo
- Publication number
- EP1155753B1 EP1155753B1 EP01401020A EP01401020A EP1155753B1 EP 1155753 B1 EP1155753 B1 EP 1155753B1 EP 01401020 A EP01401020 A EP 01401020A EP 01401020 A EP01401020 A EP 01401020A EP 1155753 B1 EP1155753 B1 EP 1155753B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- band
- section
- rolling
- running
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/383—Cladded or coated products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2275/00—Mill drive parameters
- B21B2275/02—Speed
- B21B2275/06—Product speed
Definitions
- the subject of the invention is a method and a rolling installation cold metal band, specially adapted for production annual average, for example between 300,000 tonnes and a million tons.
- the invention applies in particular to stripping and rolling steel sheets and strip obtained by hot rolling or casting continues thin.
- the hot worked product is submitted, successively, to a pickling treatment for the elimination of calamine, at a cold rolling until the thickness desired and, possibly, to finishing treatments that depend on the type of sheet to be produced, for example annealing, galvanizing or other surface treatment.
- Cold rolling is normally done in several passes in two opposite directions on a reversible train, or on several mill stands operating in tandem.
- a linked online installation of this type includes, generally speaking, an input section comprising a device for unwinding, one after the other, reels to be treated, a section of stripping for removal of scale, usually by immersion of the strip in a chemical stripping liquid, a section of cold rolling and an outlet section comprising means coil winding of the rolled strip (see for example US-A-3918282).
- the section input device comprises connection means, by welding or stapling, of the downstream end, in the direction of travel, of a first coil with the upstream end of the next coil.
- the strip is rolled up again to form a coil and when it reaches its length maximum, the band must be sheared to allow the evacuation of the coiled coil.
- a shear called "flying" constituted two blades respectively mounted on two rotary drums, but the speed must, however, be diminished.
- a winder called to carousel comprising two working winding mandrels alternately.
- such a coupled line must include at least one least two means of accumulation placed, respectively, at the entrance and at the exit of the treatment section. So, before getting to the end of a coil, we accumulate a certain length of tape that will continue to scroll through the treatment section for the time necessary for connection with the end of the next coil. Of same, in case of stop of the rolling mill, for example for the replacement cylinders, it is possible to continue scrolling the tape in the pickling tanks, accumulating the stripped length at the exit of the treatment section (see for example US-A-3,918,282).
- control motors of the various equipment must to have a great power.
- the input accumulator of the treatment must be emptied so that it can compensate for variations in subsequent speeds.
- the subject of the invention is a method new implementation of a coupled line to reduce sufficient investment and operating costs for average production is profitable.
- the invention therefore applies to a coupled online installation comprising, as usual, an input section of the tape treatment, a cold rolling section and an outlet section.
- the composition of the fluid is determined of treatment so that the metal of the strip is not attacked during a residence time in the corresponding processing section at a minimum speed of scrolling of the order of a few meters per minute, and the rolling conditions are determined so that the desired quality of the band can be maintained at a speed minimum rolling down to 1 meter per minute.
- the coupled lines currently have a very large capacity, exceeding, for example, 150,000 tons per month and therefore operate at a very high speed.
- the rolling mill must be able to achieve a significant thickness reduction and usually includes four or five cages operating in tandem. This results in variations important speeds of scrolling in the line
- the average rolling speed of the belt can go from 500 to 1500 m / min at the exit of the rolling section while the scroll speed in the stripping section must necessarily remain lower, for example 100 to 400 m / min.
- the accumulators must therefore have a very large capacity, of the order of 400 to 600 m and constitute extremely cumbersome and complex installations, including multiple levels of scrolling of the tape between a series of rollers fixed deflectors and a series of moving rollers that can move longitudinally to vary the lengths of different levels.
- the capacity to give to accumulators is, normally, more or less proportional to the tonnage to be achieved. Therefore, for a installation producing 400,000 tons per year, ie about 20% of the capacity of the current coupled lines, one should, normally, to reduce in the same proportion the capacity of the accumulators, which leads to a dimensioning of 80 m to 120 m. Such accumulators are still very cumbersome and expensive and for this reason In particular, it did not seem possible until now to make a profit a coupled line for annual production of less than 1 million tons.
- the inventor had the idea of moving away from normal operating conditions by choosing, on the contrary, to conduct operations in a way that is possible while maintaining the desired quality of the tape, to use simple equipment and little expensive to sufficiently reduce costs investment, operation and maintenance for such coupled line is profitable even for medium capacity.
- relative speeds of scrolling, respectively in the input section, the processing section, the rolling section and the outlet section are adjusted so that the difference in speeds between two successive sections during a phase of operation corresponds to scrolling, in the most fast, with an extra length of tape not exceeding a few dozen meters.
- the tape accumulators are very important facilities and a complex operation
- the invention makes it possible to use accumulators reduced capacity, for example a few tens of meters, and constitution much simpler.
- the scroll speeds can be reduced considerably, even in the rolling section, and so it is possible, at the exit of this one, to use a shear type fixed shear band at a speed not exceeding one meter per minute, as well as winding means comprising a single winder.
- maximum scrolling speeds respectively in the section inlet and in the rolling section may not exceed more than 10% the maximum scrolling speed in the section of treatment. Under these conditions, acceleration can be reduced and engines of lower power can be used and therefore, less expensive.
- the planned capacity for installation according to the invention corresponded substantially to the capacity continuous coating or annealing line. Because of this, it will be possible to associate with an installation according to the invention other apparatus placed downstream of the rolling section and allowing subject the tape to various finishing treatments, depending on the quality desired. Indeed, the operation of a coupled capacity line medium according to the invention has sufficient flexibility to allow to incorporate in the same line a coating equipment with annealing, for example, a galvanizing line.
- Figure 1 is a block diagram of an online installation coupled according to the invention.
- Figure 2 is a diagram illustrating the manufacturing capability of an installation according to the invention, with a roll stand equipped with working cylinders with a diameter of 320 mm.
- Figure 3 is a diagram showing the capacity of manufacture of an installation according to the invention with a roll stand equipped with working cylinders with a diameter of 140 mm.
- Figure 4 is an overall diagram of an installation according to the invention associated with equipment for certain treatments of finish.
- FIG. 1 diagrammatically shows the whole of a coupled line according to the invention comprising successively, along of a longitudinal direction of travel of the metal strips, a entry section 1 of the tape, a processing section 2, a section cold rolling mill 3 and an outlet section 4.
- section 1 entry and preparation of the band M comprises a reel unwinder 10, a device 11 of strip stripping and unclamping, a trimming shear 12 and a 13.
- a reel unwinder 10 a device 11 of strip stripping and unclamping
- a trimming shear 12 a 13
- the ends are first trimmed by the shears 12 so as to make two parallel edges which are welded in the welder 13. This welding can be achieved by any adequate means, the shears 12 and the welder 13 can be grouped together in the same machine.
- the tape then scrolls into a processing section 2 which is consisting, usually, of several bins 21, 22, 23 whose number and the length are determined according to the desired hour tonnage and the expected frame rate.
- a processing section 2 which is consisting, usually, of several bins 21, 22, 23 whose number and the length are determined according to the desired hour tonnage and the expected frame rate.
- the band is immersed in a chemical pickling fluid, for example hydrochloric acid, the composition of which is determined for ensure the complete elimination of calamine given the time of the stay of the band in the acid, which depends on the speed of scrolling.
- calamine can be fractionated mechanically, for example by shot blasting.
- the stripping section ends with a shear shearing equipment 26 for products requiring set width in this production line.
- a tape guiding device 25 Upstream of the shears shoreline is installed a tape guiding device 25 allowing to ensure a good centering of the band and a width setting with a minimal loss of metal.
- the cold rolling section 3 comprises a rolling mill 30 in front of which is placed a traction device 31 making it possible to submit the during rolling, at a controlled tensile stress.
- the rolling mill 30 consists normally of several rolling stands 33, 34 operating in tandem but it should be noted that, in the invention, the rolling mill may have only two stands 33, 34.
- a band guiding device 32 At the entrance of the rolling mill 30 a band guiding device 32 to ensure the centering of the band and its correct scrolling between the cylinders of job.
- the laminated belt finally goes into an exit section 4 comprising a winder 42 in front of which is placed a roll deflector 41.
- the winder 42 consists of a mandrel driven by rotation about its axis and on which engages the end of the band to wind up.
- a shear 43 is disposed on the path of the strip upstream of the deflector roll 41 and the winder 42 is associated with means not shown discharge of the coils and means for engaging the end the next spool on the mandrel of the winder.
- the rolling is stopped at least during the time necessary to replace the cylinders in the cages 33, 34 then that the movement of the strip in the bins 21, 22 must continue to avoid an excessive attack of acid. It is possible to continue the scrolling of the band between the working cylinders which are then spaced out but so produced a certain length out of tolerance which must be eliminated, which increases the rate of installation. It is therefore necessary to place, after the exit of the section of processing 2, a second tape accumulator 7 which, during stopping or slowing down of the strip in the rolling section 3, to continue scrolling through the processing section 2 by putting in reserve the strip length thus stripped which can then be laminated to the desired thickness.
- this includes several tensioning devices, respectively, 14 at the entrance of the first accumulator 6, 24 at the exit of the section of stripping 2 and 31 at the inlet of the rolling section 3.
- a device for guide 15 is placed at the inlet of the first pickling tank 21 for compensate for the geometrical defects of the band by ensuring the keeping it on the scroll axis, along the entire length of the bins 21, 22 and 23.
- the stripping section 2 ends, as usually by shear shearing equipment 26 for products requiring wide weaving in this production line and a web guiding device 25 is installed upstream of this shearing equipment 26 to ensure a good centering of the band and a width setting with minimal loss of metal.
- a tensioning device 31 is placed at the entrance of the section of rolling 3 so as to isolate the traction level of the second band accumulator 7, which is relatively low, that of the section of rolling that must be high enough at the entrance of the rolling mill 30 to allow the necessary reduction rate in the first cage.
- a band guide device 32 is also placed at the entrance of the rolling mill 30 to ensure a good scroll of the band until the winding section 4.
- An installation according to the invention therefore comprises, in its different sections, the equipment that is usually found in the linked lines but, as we will see now, the operations are conducted in such a way as to simplify the whole of the installation.
- the inhibiting product or products added in the treatment bath are used under normal conditions of operation and during each winding cycle a coil, to allow to reduce the speed of scrolling in the processing section up to a speed of a few meters per minute, the minimum speed may even be 1 to 2 meters per minute, whenever the band has to be stopped or slowed down, upstream or downstream of the treatment section.
- the presence of the product inhibitors in the treatment bath allows, in fact, to admit a fairly long residence time of the strip in the pickling tanks without risk of metal loss, only the calamine being attacked.
- a storage capacity of 10 m in the second accumulator 7 placed downstream of the treatment section 2 allows a stop of the rolling mill for 5 to 10 minutes, for example for the evacuation of a coil of the winder 42.
- the speed of scrolling in the mill 30 can also be reduced.
- the rolling mill stands, for example of the quarto type, may be equipped with means of control of the flatness by cambering of the work rolls and / or using rolls of support with rotating envelope and with controlled deformation of the realized type by the applicant company and known as "DSR" (registered trademark).
- working rolls having a diameter adapted to the type of production, the rolling mill 30 being equipped with means of change and replacement of the cylinders.
- the scrolling speed can be reduced to a few meters per minute, not only in the stripping section 2 but also in the rolling section 3, without stopping the rolling.
- the scrolling of the tape in the processing section can be stopped or, at least, slowed down at a very low speed.
- the engines of control of the different equipment must have a very high power high to allow very large speed variations with high acceleration rates so as to go through the stages of transition as quickly as possible. Indeed, we must avoid losing some quality parameters of the produced tape and we want to minimize the time during which the tape length is out of tolerance.
- the different sections operate continuously in a range of speeds from 0 to 100 meters minute and these speeds remain the same in all the different sections and in all phases of operation. From this done, after a slowdown stage, it is not necessary to return very quickly to the normal scrolling speed because speeds in all sections can be increased gradually, with an average acceleration rate. So we can use engines of lower power than in installations and thus significantly reduce the cost of investment and energy expenditure.
- a speed increase of 10%, up to 55 m / min will allow to fill the accumulator 6 in about two minutes, which is all about makes consistent with the unwinding time of a reel that is about 10 minutes for a processing speed of 50 m / min and for a roll to be rolled having a rolled length of about 500 m.
- the possibility of making the cut in slow scrolling avoids a stop of the rolling mill which would be a cause of marking the rolled product, and finish the coil winding which can be evacuated before the new tape head formed at the cut does not reach the engagement device on the winder 42, for the formation of a new coil.
- This ability to use a single winding machine is also a very important economy by compared to conventional lines in which it is necessary to use two winders with turnouts or a carousel winder, such equipment being much more expensive.
- a coupled line according to the invention can still be simplified using a rolling mill 30 normally comprising only two cages 33, 34.
- the invention has thus made it possible to reduce the investment costs and of operation of the coupled line in virtually all sections of it and, thus, to make such a facility profitable for average production capacity.
- Each diagram indicates, on the ordinate, the thicknesses that it is possible to get to the output of the facility for different widths of band indicated on the abscissa.
- the rolling mill 30 is equipped with working cylinder having a diameter of about 320 mm.
- the shaded area indicates the production area of a such installation by thickness and width of product, considering that the incoming product, which is delivered by a conventional equipment of hot rolling or a thin continuous casting plant, has a thickness of the order of 1.5 mm. With a reduction rate from 50 to 64%, it is possible to produce all thicknesses between 0.5 and 1.5 mm to a belt width of about 1100 mm.
- the thickness range is narrower for widths greater than 1100 mm, the output thickness being between 0.7 and 1.1 mm for a maximum width of 1500 mm.
- the continuous lower line corresponds to the use of shotblasted work rolls that wear out fast enough.
- Figure 3 illustrates the domain of possible production with such an installation and for an incoming product having a minimum thickness of 1.5 mm.
- the rolling mill comprising at most three cages, these can be equipped with flatness as support cylinders with controlled deformation, or well being type Z-High.
- Such equipment is, in fact, profitable even for average production, because of the benefits brought by the coupling.
- a coupled line according to the invention could, so particularly advantageous, to be completed before winding up. coil, by one or more additional sections allowing perform finishing treatments, according to the desired quality.
- FIG. 4 therefore schematically shows a thus improved installation including, as before, a input section 1, a processing section 2 and a section of rolling 3 and completed, downstream thereof by equipment of finishing 5 such as, for example, a degreasing section 50, a coating section 51 possibly associated with an annealing furnace, a skin-pass rolling stand 52, planing equipment 53 and a winder 44.
- equipment of finishing 5 such as, for example, a degreasing section 50, a coating section 51 possibly associated with an annealing furnace, a skin-pass rolling stand 52, planing equipment 53 and a winder 44.
- the assembly is placed downstream of the shear 43, in parallel with the first winder 42.
- the coating section 51 can realize, for example, a conventional dip galvanization, electro-galvanizing or any other coating. It is also possible to use only an annealing furnace continuous production of annealed and planed or skin-worked bare sheets.
- the rolling speed can be adapted to the speed of the galvanizing equipment that is related to the sheet metal format to coat and the weight of the desired coating. It is not then necessary to provide an accumulator between the rolling section 3 and the finishing section 5.
- the cylinder change can be programmed by providing a batch of coils to be coated that do not require of rolling, so as to effect the change of the cylinders during This time.
- a switch makes it possible to direct the band, either towards the coating line, up to the winder 44, either directly to the winder 42.
Description
- une gamme de l'ordre de 350 mm de diamètre pour produire des tôles réalisées en acier à faible limite élastique et dont l'épaisseur minimale serait de 0,5 mm.
- une gamme de l'ordre de 150 mm de diamètre pour produire des tôles en aciers à plus forte limite élastique, jusqu'à une épaisseur minimale de l'ordre de 0, 35 mm.
Claims (20)
- Procédé de laminage continu à froid d'un produit en bande métallique enroulé en bobines par défilement de la bande (M) dans une installation en ligne continue comprenant successivement, dans le sens de défilement de la bande :une section d'entrée (1) comportant au moins des moyens (10) de déroulement de bobines l'une après l'autre et un dispositif (13) de soudage de l'extrémité aval, dans le sens de défilement, d'une première bobine avec l'extrémité amont d'une bobine suivante pour la formation d'une bande continue,une section de traitement (2) par défilement de la bande (M) au contact d'un fluide de traitement ayant une composition déterminée pour le décapage de la bande (M),une section de laminage à froid (3) avec réglage des conditions de laminage pour l'obtention d'une qualité souhaitée de la bande,une section de sortie (4) comportant au moins un moyen (43) de cisaillage de la bande laminée et des moyens (42) d'enroulement de celle-ci en bobine,au moins deux moyens d'accumulation d'une longueur variable de bande étant interposés, respectivement, l'un (6) entre la section d'entrée (1) et la section de traitement (2) et l'autre (7) entre la section de traitement (2) et la section de laminage (3), pour permettre des variations relatives des vitesses de défilement dans chacune desdites sections,
- Procédé de laminage selon la revendication 1, caractérisé par le fait que les vitesses de défilement, respectivement dans la section de traitement (2) et dans la section de laminage (3) peuvent être réduites jusqu'à une vitesse minimale de 1 à 2 m/min en maintenant la qualité souhaité de la bande (M).
- Procédé de laminage selon l'une des revendications 1 et 2, caractérisé par le fait que les vitesses maximales de défilement, respectivement dans la section d'entrée (1) et dans la section de laminage (3) ne dépassent pas de plus de 10% la vitesse maximale de défilement dans la section de traitement (2).
- Procédé de laminage selon l'une des revendications 1 à 3, caractérisé par le fait que, pendant le temps nécessaire au soudage des extrémités, respectivement aval et amont de deux bobines successives, le défilement de la bande est arrêté dans la section d'entrée (1) et la vitesse de défilement dans la section de traitement (2) est abaissée à une valeur minimale assez faible pour que la longueur de bande défilant dans la section de traitement (2) pendant le temps de soudage ne dépasse pas quelques dizaines de mètres.
- Procédé de laminage selon la revendication 4, caractérisé par le fait que, pendant le temps nécessaire au cisaillage de la bande, la vitesse de défilement dans la section de sortie (4) ne dépasse pas 1 m/min et la vitesse de défilement dans la section de laminage (3) est abaissée à une valeur minimale assez faible pour que la longueur de bande correspondante ne dépasse pas quelques dizaines de mètres.
- Procédé de laminage selon l'une des revendications précédentes, caractérisé par le fait que, pendant toutes les phases d'exploitation, les vitesses relatives de défilement, respectivement dans la section d'entrée (1), la section de traitement (2), la section de laminage (3) et la section de sortie (4) sont réglées de telle sorte que la différence des vitesses entre deux sections successives pendant une phase d'exploitation corresponde au défilement, dans la section la plus rapide, d'une longueur supplémentaire de bande ne dépassant pas quelques dizaines de mètres.
- Procédé de laminage selon l'une des revendications précédentes, caractérisé par le fait que, pour le remplissage d'un moyen d'accumulation (6) (7), la vitesse de défilement dans la section (2) (3) placée en aval dudit moyen est réglée à une valeur inférieure d'environ 10% à la vitesse dans la section (1) (2) placée en amont.
- Procédé de laminage selon l'une des revendications précédentes, caractérisé par le fait que l'on réalise une production annuelle comprise entre 300.000 tonnes et un million de tonnes.
- Procéde de laminage selon l'une des revendications précédentes, caractérisé par le fait que, après le laminage à froid, on soumet la bande laminée (M) à au moins un traitement de finition tel qu'un revêtement avec recuit continu.
- Installation de fabrication d'une bande métallique pour la mise en oeuvre du procédé selon l'une des revendications précédentes comprenant successivement, le long d'une direction de défilement de la bande :une section d'entrée (1) comportant au moins des moyens (10) de déroulement de bobines l'une après l'autre et un dispositif (13) de soudage de l'extrémité aval, dans le sens de défilement, d'une première bobine avec l'extrémité amont d'une bobine suivante pour la formation d'une bande continue,une section de traitement (2) par défilement de la bande au contact d'un fluide de traitement ayant une composition déterminée pour le décapage de la bande,une section de laminage à froid (3) avec réglage des conditions de laminage pour l'obtention d'une qualité souhaitée de la bande,- une section de sortie (4) comportant un moyen (43) de cisaillage de la bande laminée (M) et des moyens (42) d'enroulement de celle-ci en bobine,au moins deux moyens d'accumulation d'une longueur variable de bande étant interposés, respectivement, l'un (6) entre la section d'entrée (1) et la section de traitement (2) et l'autre (7) entre la section de traitement (2) et la section de laminage (3), pour permettre des variations relatives des vitesses de défilement dans chacune desdites sections,
- Installation selon la revendication 10, caractérisé par le fait que des moyens (14, 24) de mise en tension de la bande sont interposés, respectivement à l'entrée et à la sortie de la section de traitement.
- Installation selon la revendication 10, caractérisée par le fait que les moyens d'accumulation (6) (7) ont une capacité limitée à deux fois le trentième de la valeur maximale de la vitesse de défilement dans la section de traitement.
- Installation selon l'une des revendications 10 à 12, caractérisé par le fait que, pour une production de bandes d'acier ayant une épaisseur minimale de 0,4 à 0,5 mm, les cages de laminoir (30) sont équipées de cylindres de travail ayant un diamètre compris entre 300 et 350 mm.
- Installation selon l'une des revendications 10 à 12, caractérisée par le fait que, pour une production de bandes ayant une épaisseur minimale de l'ordre de 0,2 à 0,25 mm, les cages de laminoir (30) sont équipées de cylindres de travail dont le diamètre ne dépasse pas 150 mm.
- Installation selon l'une des revendications 10 à 14, caractérisée par le fait qu'au moins une cage de laminoir (30) est équipée de cylindres de soutien à déformation contrôlée.
- Installation selon l'une des revendications 10 à 15, caractérisée par le fait qu'au moins une cage de laminoir (30) est du type sexto avec des moyens d'appui latéraux des cylindres de travail.
- Installation selon l'une des revendications 10 à 16, caractérisée par le fait qu'elle comprend au moins un équipement de revêtement continu (51) placé sur le trajet de la bande (M), en aval de la section de laminage (3) et suivi de moyens (44) d'enroulement de la bande (M).
- Installation selon la revendication 17, caractérisée par le fait que l'équipement (51) de revêtement en continu fonctionne à une vitesse de défilement du même ordre que la vitesse de la bande à la sortie de la section de laminage (3).
- Installation selon la revendication 18, caractérisée par le fait que l'équipement de revêtement (51) est un équipement de galvanisation.
- Installation selon l'une des revendications 18 et 19, caractérisée par le fait qu'elle comprend un équipement de recuit continu.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0005186A FR2807957B1 (fr) | 2000-04-21 | 2000-04-21 | Procede et installation de laminage a froid |
FR0005186 | 2000-04-21 |
Publications (2)
Publication Number | Publication Date |
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EP1155753A1 EP1155753A1 (fr) | 2001-11-21 |
EP1155753B1 true EP1155753B1 (fr) | 2005-04-06 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP01401020A Expired - Lifetime EP1155753B1 (fr) | 2000-04-21 | 2001-04-20 | Procédé et installation de laminage à froid. |
Country Status (7)
Country | Link |
---|---|
US (1) | US6453709B2 (fr) |
EP (1) | EP1155753B1 (fr) |
CN (1) | CN1226107C (fr) |
AT (1) | ATE292527T1 (fr) |
DE (1) | DE60109846T2 (fr) |
ES (1) | ES2238401T3 (fr) |
FR (1) | FR2807957B1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003094107A (ja) * | 2001-09-21 | 2003-04-02 | Hitachi Ltd | 連続式酸洗冷間圧延設備とその操業方法 |
DE10234109A1 (de) * | 2002-07-26 | 2004-02-05 | Sms Demag Ag | Verfahren und Vorrichtung zur kontinuierlichen Herstellung metallischer Bänder |
WO2008062506A1 (fr) | 2006-11-20 | 2008-05-29 | Mitsubishi-Hitachi Metals Machinery, Inc. | Matériel de production de matériau laminé à froid et procédé de laminage à froid |
CN101311853B (zh) * | 2007-05-21 | 2010-07-21 | 上海宝信软件股份有限公司 | 带钢连续生产机组减少前后带钢焊接时间的方法 |
DE102008019768A1 (de) * | 2008-04-18 | 2009-10-22 | Hydro Aluminium Deutschland Gmbh | Verfahren zur Herstellung eines Bandes für Verpackungszwecke |
US9195309B2 (en) * | 2011-05-27 | 2015-11-24 | Qualcomm Incorporated | Method and apparatus for classifying multiple device states |
CN102513806B (zh) * | 2011-12-30 | 2014-01-01 | 北方工业大学 | 一种纵向变厚度冷弯型材连轧连辊成形方法及其装置 |
CN102989769B (zh) * | 2012-12-19 | 2015-04-22 | 肇庆宏旺金属实业有限公司 | 酸洗和冷轧一体化设备 |
DE102013104296B4 (de) * | 2013-04-26 | 2016-02-25 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung eines Fahrwerkbauteils und Fahrwerkbauteil |
ITGE20130070A1 (it) * | 2013-07-24 | 2015-01-25 | Sandro Brizielli | Linea multiuso per la produzione di lamiere |
WO2016055972A1 (fr) * | 2014-10-10 | 2016-04-14 | Danieli & C. Officine Meccaniche S.P.A. | Installation combinée de décapage et de laminage permettant de décaper et de laminer des bandes métalliques |
EP3346017B1 (fr) * | 2017-01-10 | 2021-09-15 | Heraeus Deutschland GmbH & Co. KG | Procédé de coupe de métaux réfractaires |
CN108118354A (zh) * | 2017-12-20 | 2018-06-05 | 攀钢集团西昌钢钒有限公司 | 一种改善带钢首尾品质的酸洗系统 |
CN110586662B (zh) * | 2019-09-03 | 2024-02-06 | 石横特钢集团有限公司 | 一种棒材全流程控轧控冷生产线 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3536601A (en) * | 1968-03-07 | 1970-10-27 | Inland Steel Co | Process for acid pickling |
US3918282A (en) * | 1974-09-04 | 1975-11-11 | Blaw Knox Foundry Mill Machine | Combination pickling-rolling mill |
US4188812A (en) * | 1979-01-03 | 1980-02-19 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Installation for production of continuously cold rolled sheet metal or strip |
KR900007072B1 (ko) * | 1985-03-15 | 1990-09-28 | 신닛뽄 세이데쓰 가부시끼가이샤 | 냉간압연 강스트립의 제조방법 및 장치 |
JPH02163321A (ja) * | 1988-03-10 | 1990-06-22 | Nkk Corp | 電磁鋼板の酸洗方法 |
US5279141A (en) * | 1988-12-23 | 1994-01-18 | Kawasaki Steel Corporation | Apparatus for pre-processing stainless steel strip intended to be cold-rolled |
US5197179A (en) * | 1991-04-18 | 1993-03-30 | T. Sendzimir, Inc. | Means and a method of improving the quality of cold rolled stainless steel strip |
JP2799275B2 (ja) * | 1993-02-26 | 1998-09-17 | 株式会社日立製作所 | メッキ設備及びその運転方法 |
DE4445716C2 (de) * | 1994-12-22 | 1997-10-02 | Sundwiger Eisen Maschinen | Verfahren und Fertigungslinie zum Herstellen von kaltgewaltzem, nicht rostendem Stahlband |
AT404030B (de) * | 1995-02-15 | 1998-07-27 | Andritz Patentverwaltung | Verfahren zur beize von materialien aus stahl, insbesondere edelstahl |
IT1276955B1 (it) * | 1995-10-18 | 1997-11-03 | Novamax Itb S R L | Processo di decapaggio e passivazione di acciaio inossidabile senza impiego di acido nitrico |
FR2740061B1 (fr) * | 1995-10-19 | 1997-11-28 | Ugine Sa | Procede d'elaboration, sur une ligne, en continu, d'une bande de tole laminee d'acier inoxydable presentant un etat de surface amelioree |
FR2745301B1 (fr) * | 1996-02-27 | 1998-04-03 | Usinor Sacilor | Procede de decapage d'une piece en acier et notamment d'une bande de tole en acier inoxydable |
US5826818A (en) * | 1997-06-30 | 1998-10-27 | Kvaerner U.S. Inc. | Compact strip processing facility |
-
2000
- 2000-04-21 FR FR0005186A patent/FR2807957B1/fr not_active Expired - Fee Related
-
2001
- 2001-04-20 DE DE60109846T patent/DE60109846T2/de not_active Expired - Lifetime
- 2001-04-20 ES ES01401020T patent/ES2238401T3/es not_active Expired - Lifetime
- 2001-04-20 AT AT01401020T patent/ATE292527T1/de not_active IP Right Cessation
- 2001-04-20 CN CN01116674.6A patent/CN1226107C/zh not_active Expired - Fee Related
- 2001-04-20 EP EP01401020A patent/EP1155753B1/fr not_active Expired - Lifetime
- 2001-04-23 US US09/839,246 patent/US6453709B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60109846T2 (de) | 2006-01-19 |
FR2807957A1 (fr) | 2001-10-26 |
CN1226107C (zh) | 2005-11-09 |
ES2238401T3 (es) | 2005-09-01 |
EP1155753A1 (fr) | 2001-11-21 |
US6453709B2 (en) | 2002-09-24 |
US20010037667A1 (en) | 2001-11-08 |
CN1320492A (zh) | 2001-11-07 |
DE60109846D1 (de) | 2005-05-12 |
ATE292527T1 (de) | 2005-04-15 |
FR2807957B1 (fr) | 2002-08-02 |
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